CVE-2026-49284
highPriorität · verfolgen · 0OT-Risiko · erhöhtEPSS 0.002 · 13. PerzentilDEEUNLUSEPSS · bewertet 2026-10-27
SimpleSAMLphp versions before 1.18.6 contain an information disclosure vulnerability. Prior to 2.4.7 and 2.5.2, SimpleSAMLphp's SAML SP ACS path does not enforce the IdP selected for an SP-initiated login when unsigned Response/InResponseTo is combined with a signed assertion lacking SubjectConfirmationData/InResponseTo, allowing a response issued by one trusted IdP to be bound to SP state created for another IdP and bypass flows that route users to a specific IdP, including deployments that set enable_unsolicited to false. This issue is fixed in versions 2.4.7 and 2.5.2.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 6.5–7.1
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (21)
Betroffene Produkte und Versionsbereiche.
- Oracle Communications Cloud Native Core Security Edge Protection Proxy 25.2.201alle Versionencert_bundDEcpe:/a:oracle:communications:cloud_native_core_security_edge_protection_proxy_25.2.201
- Oracle Communications Cloud Native Core Security Edge Protection Proxy 26.1.200alle Versionencert_bundDEcpe:/a:oracle:communications:cloud_native_core_security_edge_protection_proxy_26.1.200
- Oracle Communications MetaSolv Solution Module 70.0.0alle Versionencert_bundDEcpe:/a:oracle:communications:metasolv_solution_module_70.0.0
- Oracle Communications Operations Monitor 6.1alle Versionencert_bundDEcpe:/a:oracle:communications:operations_monitor_6.1
- Oracle Communications Service Catalog and Design 8.0-8.3alle Versionencert_bundDEcpe:/a:oracle:communications:service_catalog_and_design_8.0_-_8.3
- Oracle Communications Unified Assurance 6.1.1-7.0.0alle Versionencert_bundDEcpe:/a:oracle:communications:unified_assurance_6.1.1_-_7.0.0
- Oracle Communications Unified Assurance 7.0.0alle Versionencert_bundDEcpe:/a:oracle:communications:unified_assurance_7.0.0
Advisories (3)
Hersteller- und Ökosystem-Meldungen dazu.
- NCSC-2026-0375Kwetsbaarheden verholpen in Oracle CommunicationsNL2026-09-16csaf · ncsc_nlNL
Oracle heeft 31 kwetsbaarheden verholpen in diverse Oracle Communications-producten, waaronder Oracle Communications Unified Assurance, Oracle Communications Cloud Native Core Security Edge Protection Proxy, Oracle Communications MetaSolv Solution Module - ASR, Oracle Communications Service Catalog and Design en Oracle Communications Operations Monitor.
- WID-SEC-W-2026-3403Oracle Communications: Mehrere SchwachstellenDeutsch2026-09-15csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Communications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
- GHSA-q8r6-xj3f-wrrmSimpleSAMLphp SP accepts a response from an unexpected IdP when unsigned `Response/InResponseTo` is combined with a signed assertion lacking `SubjectConfirmationData/InResponseTo`2026-07-02ghsa · osvUS
## Summary SimpleSAMLphp's SAML SP ACS path does not enforce the IdP selected for an SP-initiated login. If a saved SP state contains `ExpectedIssuer = IdP A`, but the ACS receives a valid response from `IdP B`, the code logs a warning and continues processing instead of rejecting the response. That behavior becomes security-relevant when combined with the response-processing rule that accepts an unsigned `samlp:Response/@InResponseTo` outside the signed assertion whenever the signed assertion's `SubjectConfirmationData` does not carry its own `InResponseTo`. A response issued by one trusted IdP can therefore be bound to SP state created for another IdP. ## Impact In a multi-IdP deployment, a lower-trust IdP can satisfy SP state created for a different expected IdP. This can bypass an SP flow that intentionally routes the user to a specific IdP, including deployments that set `enable_unsolicited` to `false` to prevent IdP-initiated logins. The impact is highest when the SP trusts multiple IdPs with different assurance levels, tenant boundaries, or attribute namespaces, and application authorization depends on the selected/expected IdP. In those deployments this is an authentication/authorization bypass candidate. Impact strongly depends on whether an attacker can obtain a signed IdP-initiated assertion from a lower-trust trusted IdP and whether the downstream application maps identifiers globally.
auch bekannt als (3)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (9)
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/simplesamlphp/simplesamlphp/releases/tag/v2.4.7cnnvd
- https://github.com/simplesamlphp/simplesamlphp/releases/tag/v2.5.2cnnvd
- https://github.com/simplesamlphp/simplesamlphp/security/advisories/GHSA-q8r6-xj3f-wrrmcnnvd
- https://github.com/simplesamlphp/simplesamlphp/releases/tag/v2.4.7enisa_euvd
- https://github.com/simplesamlphp/simplesamlphp/releases/tag/v2.5.2enisa_euvd
- https://github.com/simplesamlphp/simplesamlphp/security/advisories/GHSA-q8r6-xj3f-wrrmenisa_euvd
- https://github.com/simplesamlphp/simplesamlphp/releases/tag/v2.4.7ProductRelease Notesnvd
- https://github.com/simplesamlphp/simplesamlphp/releases/tag/v2.5.2ProductRelease Notesnvd
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